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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef PrimitiveInterpolation_h | 5 #ifndef PrimitiveInterpolation_h |
6 #define PrimitiveInterpolation_h | 6 #define PrimitiveInterpolation_h |
7 | 7 |
8 #include "core/animation/TypedInterpolationValue.h" | 8 #include "core/animation/TypedInterpolationValue.h" |
9 #include "platform/animation/AnimationUtilities.h" | 9 #include "platform/animation/AnimationUtilities.h" |
10 #include "platform/heap/Handle.h" | 10 #include "platform/heap/Handle.h" |
11 #include "wtf/PtrUtil.h" | 11 #include "wtf/PtrUtil.h" |
12 #include "wtf/Vector.h" | 12 #include "wtf/Vector.h" |
13 #include <cmath> | 13 #include <cmath> |
14 #include <memory> | 14 #include <memory> |
15 | 15 |
16 namespace blink { | 16 namespace blink { |
17 | 17 |
18 class StyleResolverState; | 18 class StyleResolverState; |
19 | 19 |
20 // Represents an animation's effect between an adjacent pair of PropertySpecific
Keyframes after converting | 20 // Represents an animation's effect between an adjacent pair of |
21 // the keyframes to an internal format with respect to the animation environment
and underlying values. | 21 // PropertySpecificKeyframes after converting the keyframes to an internal |
| 22 // format with respect to the animation environment and underlying values. |
22 class PrimitiveInterpolation { | 23 class PrimitiveInterpolation { |
23 USING_FAST_MALLOC(PrimitiveInterpolation); | 24 USING_FAST_MALLOC(PrimitiveInterpolation); |
24 WTF_MAKE_NONCOPYABLE(PrimitiveInterpolation); | 25 WTF_MAKE_NONCOPYABLE(PrimitiveInterpolation); |
25 | 26 |
26 public: | 27 public: |
27 virtual ~PrimitiveInterpolation() {} | 28 virtual ~PrimitiveInterpolation() {} |
28 | 29 |
29 virtual void interpolateValue( | 30 virtual void interpolateValue( |
30 double fraction, | 31 double fraction, |
31 std::unique_ptr<TypedInterpolationValue>& result) const = 0; | 32 std::unique_ptr<TypedInterpolationValue>& result) const = 0; |
32 virtual double interpolateUnderlyingFraction(double start, | 33 virtual double interpolateUnderlyingFraction(double start, |
33 double end, | 34 double end, |
34 double fraction) const = 0; | 35 double fraction) const = 0; |
35 virtual bool isFlip() const { return false; } | 36 virtual bool isFlip() const { return false; } |
36 | 37 |
37 protected: | 38 protected: |
38 PrimitiveInterpolation() {} | 39 PrimitiveInterpolation() {} |
39 }; | 40 }; |
40 | 41 |
41 // Represents a pair of keyframes that are compatible for "smooth" interpolation
eg. "0px" and "100px". | 42 // Represents a pair of keyframes that are compatible for "smooth" interpolation |
| 43 // eg. "0px" and "100px". |
42 class PairwisePrimitiveInterpolation : public PrimitiveInterpolation { | 44 class PairwisePrimitiveInterpolation : public PrimitiveInterpolation { |
43 public: | 45 public: |
44 ~PairwisePrimitiveInterpolation() override {} | 46 ~PairwisePrimitiveInterpolation() override {} |
45 | 47 |
46 static std::unique_ptr<PairwisePrimitiveInterpolation> create( | 48 static std::unique_ptr<PairwisePrimitiveInterpolation> create( |
47 const InterpolationType& type, | 49 const InterpolationType& type, |
48 std::unique_ptr<InterpolableValue> start, | 50 std::unique_ptr<InterpolableValue> start, |
49 std::unique_ptr<InterpolableValue> end, | 51 std::unique_ptr<InterpolableValue> end, |
50 PassRefPtr<NonInterpolableValue> nonInterpolableValue) { | 52 PassRefPtr<NonInterpolableValue> nonInterpolableValue) { |
51 return wrapUnique(new PairwisePrimitiveInterpolation( | 53 return wrapUnique(new PairwisePrimitiveInterpolation( |
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89 double fraction) const final { | 91 double fraction) const final { |
90 return blend(start, end, fraction); | 92 return blend(start, end, fraction); |
91 } | 93 } |
92 | 94 |
93 const InterpolationType& m_type; | 95 const InterpolationType& m_type; |
94 std::unique_ptr<InterpolableValue> m_start; | 96 std::unique_ptr<InterpolableValue> m_start; |
95 std::unique_ptr<InterpolableValue> m_end; | 97 std::unique_ptr<InterpolableValue> m_end; |
96 RefPtr<NonInterpolableValue> m_nonInterpolableValue; | 98 RefPtr<NonInterpolableValue> m_nonInterpolableValue; |
97 }; | 99 }; |
98 | 100 |
99 // Represents a pair of incompatible keyframes that fall back to 50% flip behavi
our eg. "auto" and "0px". | 101 // Represents a pair of incompatible keyframes that fall back to 50% flip |
| 102 // behaviour eg. "auto" and "0px". |
100 class FlipPrimitiveInterpolation : public PrimitiveInterpolation { | 103 class FlipPrimitiveInterpolation : public PrimitiveInterpolation { |
101 public: | 104 public: |
102 ~FlipPrimitiveInterpolation() override {} | 105 ~FlipPrimitiveInterpolation() override {} |
103 | 106 |
104 static std::unique_ptr<FlipPrimitiveInterpolation> create( | 107 static std::unique_ptr<FlipPrimitiveInterpolation> create( |
105 std::unique_ptr<TypedInterpolationValue> start, | 108 std::unique_ptr<TypedInterpolationValue> start, |
106 std::unique_ptr<TypedInterpolationValue> end) { | 109 std::unique_ptr<TypedInterpolationValue> end) { |
107 return wrapUnique( | 110 return wrapUnique( |
108 new FlipPrimitiveInterpolation(std::move(start), std::move(end))); | 111 new FlipPrimitiveInterpolation(std::move(start), std::move(end))); |
109 } | 112 } |
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136 bool isFlip() const final { return true; } | 139 bool isFlip() const final { return true; } |
137 | 140 |
138 std::unique_ptr<TypedInterpolationValue> m_start; | 141 std::unique_ptr<TypedInterpolationValue> m_start; |
139 std::unique_ptr<TypedInterpolationValue> m_end; | 142 std::unique_ptr<TypedInterpolationValue> m_end; |
140 mutable double m_lastFraction; | 143 mutable double m_lastFraction; |
141 }; | 144 }; |
142 | 145 |
143 } // namespace blink | 146 } // namespace blink |
144 | 147 |
145 #endif // PrimitiveInterpolation_h | 148 #endif // PrimitiveInterpolation_h |
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